SILVER SEAL Radiator Sealer and Cracked Block Repair

Silver Seal Radiator Sealer and Cracked Block Repair seals cracked motor blocks and leaks in radiators of Cars, Trucks and Tractors. Tube contains 21 grams - enough for a standard cooling system.

Silver Seal Radiator Leak Stopper is a metallic sealer containing metal flakes that stay in suspension in the cooling system until carried to the leaking area. The metallic particles seal leaks when exposed to air. Ten minutes of engine operation is all it takes to complete the sealing cycle. Silver Seal has been trusted by millions for decades.

Silver Seal - The Original and Genuine Stop Leak Formula since 1928 -

• Guaranteed to mix with all Anti-Freeze solutions

• Will not clog or block coolant channels or thermostats?

• Contains a new improved rust inhibitor

• Approved for pressurized water systems?

• Effective cure for radiator and coolant leaks in the USA since 1928

• Easy to use - pre-mix with anti-freeze or water for best results.